From 8c12c6939aab9106db14ec2d11d983bc5b29fb2c Mon Sep 17 00:00:00 2001 From: Niall Sheridan Date: Sun, 7 Jul 2019 21:33:44 +0100 Subject: Switch to modules --- .../google.golang.org/api/gensupport/resumable.go | 217 --------------------- 1 file changed, 217 deletions(-) delete mode 100644 vendor/google.golang.org/api/gensupport/resumable.go (limited to 'vendor/google.golang.org/api/gensupport/resumable.go') diff --git a/vendor/google.golang.org/api/gensupport/resumable.go b/vendor/google.golang.org/api/gensupport/resumable.go deleted file mode 100644 index dcd591f..0000000 --- a/vendor/google.golang.org/api/gensupport/resumable.go +++ /dev/null @@ -1,217 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package gensupport - -import ( - "errors" - "fmt" - "io" - "net/http" - "sync" - "time" - - "golang.org/x/net/context" -) - -const ( - // statusTooManyRequests is returned by the storage API if the - // per-project limits have been temporarily exceeded. The request - // should be retried. - // https://cloud.google.com/storage/docs/json_api/v1/status-codes#standardcodes - statusTooManyRequests = 429 -) - -// ResumableUpload is used by the generated APIs to provide resumable uploads. -// It is not used by developers directly. -type ResumableUpload struct { - Client *http.Client - // URI is the resumable resource destination provided by the server after specifying "&uploadType=resumable". - URI string - UserAgent string // User-Agent for header of the request - // Media is the object being uploaded. - Media *MediaBuffer - // MediaType defines the media type, e.g. "image/jpeg". - MediaType string - - mu sync.Mutex // guards progress - progress int64 // number of bytes uploaded so far - - // Callback is an optional function that will be periodically called with the cumulative number of bytes uploaded. - Callback func(int64) - - // If not specified, a default exponential backoff strategy will be used. - Backoff BackoffStrategy -} - -// Progress returns the number of bytes uploaded at this point. -func (rx *ResumableUpload) Progress() int64 { - rx.mu.Lock() - defer rx.mu.Unlock() - return rx.progress -} - -// doUploadRequest performs a single HTTP request to upload data. -// off specifies the offset in rx.Media from which data is drawn. -// size is the number of bytes in data. -// final specifies whether data is the final chunk to be uploaded. -func (rx *ResumableUpload) doUploadRequest(ctx context.Context, data io.Reader, off, size int64, final bool) (*http.Response, error) { - req, err := http.NewRequest("POST", rx.URI, data) - if err != nil { - return nil, err - } - - req.ContentLength = size - var contentRange string - if final { - if size == 0 { - contentRange = fmt.Sprintf("bytes */%v", off) - } else { - contentRange = fmt.Sprintf("bytes %v-%v/%v", off, off+size-1, off+size) - } - } else { - contentRange = fmt.Sprintf("bytes %v-%v/*", off, off+size-1) - } - req.Header.Set("Content-Range", contentRange) - req.Header.Set("Content-Type", rx.MediaType) - req.Header.Set("User-Agent", rx.UserAgent) - - // Google's upload endpoint uses status code 308 for a - // different purpose than the "308 Permanent Redirect" - // since-standardized in RFC 7238. Because of the conflict in - // semantics, Google added this new request header which - // causes it to not use "308" and instead reply with 200 OK - // and sets the upload-specific "X-HTTP-Status-Code-Override: - // 308" response header. - req.Header.Set("X-GUploader-No-308", "yes") - - return SendRequest(ctx, rx.Client, req) -} - -func statusResumeIncomplete(resp *http.Response) bool { - // This is how the server signals "status resume incomplete" - // when X-GUploader-No-308 is set to "yes": - return resp != nil && resp.Header.Get("X-Http-Status-Code-Override") == "308" -} - -// reportProgress calls a user-supplied callback to report upload progress. -// If old==updated, the callback is not called. -func (rx *ResumableUpload) reportProgress(old, updated int64) { - if updated-old == 0 { - return - } - rx.mu.Lock() - rx.progress = updated - rx.mu.Unlock() - if rx.Callback != nil { - rx.Callback(updated) - } -} - -// transferChunk performs a single HTTP request to upload a single chunk from rx.Media. -func (rx *ResumableUpload) transferChunk(ctx context.Context) (*http.Response, error) { - chunk, off, size, err := rx.Media.Chunk() - - done := err == io.EOF - if !done && err != nil { - return nil, err - } - - res, err := rx.doUploadRequest(ctx, chunk, off, int64(size), done) - if err != nil { - return res, err - } - - // We sent "X-GUploader-No-308: yes" (see comment elsewhere in - // this file), so we don't expect to get a 308. - if res.StatusCode == 308 { - return nil, errors.New("unexpected 308 response status code") - } - - if res.StatusCode == http.StatusOK { - rx.reportProgress(off, off+int64(size)) - } - - if statusResumeIncomplete(res) { - rx.Media.Next() - } - return res, nil -} - -func contextDone(ctx context.Context) bool { - select { - case <-ctx.Done(): - return true - default: - return false - } -} - -// Upload starts the process of a resumable upload with a cancellable context. -// It retries using the provided back off strategy until cancelled or the -// strategy indicates to stop retrying. -// It is called from the auto-generated API code and is not visible to the user. -// Before sending an HTTP request, Upload calls any registered hook functions, -// and calls the returned functions after the request returns (see send.go). -// rx is private to the auto-generated API code. -// Exactly one of resp or err will be nil. If resp is non-nil, the caller must call resp.Body.Close. -func (rx *ResumableUpload) Upload(ctx context.Context) (resp *http.Response, err error) { - var pause time.Duration - backoff := rx.Backoff - if backoff == nil { - backoff = DefaultBackoffStrategy() - } - - for { - // Ensure that we return in the case of cancelled context, even if pause is 0. - if contextDone(ctx) { - return nil, ctx.Err() - } - select { - case <-ctx.Done(): - return nil, ctx.Err() - case <-time.After(pause): - } - - resp, err = rx.transferChunk(ctx) - - var status int - if resp != nil { - status = resp.StatusCode - } - - // Check if we should retry the request. - if shouldRetry(status, err) { - var retry bool - pause, retry = backoff.Pause() - if retry { - if resp != nil && resp.Body != nil { - resp.Body.Close() - } - continue - } - } - - // If the chunk was uploaded successfully, but there's still - // more to go, upload the next chunk without any delay. - if statusResumeIncomplete(resp) { - pause = 0 - backoff.Reset() - resp.Body.Close() - continue - } - - // It's possible for err and resp to both be non-nil here, but we expose a simpler - // contract to our callers: exactly one of resp and err will be non-nil. This means - // that any response body must be closed here before returning a non-nil error. - if err != nil { - if resp != nil && resp.Body != nil { - resp.Body.Close() - } - return nil, err - } - - return resp, nil - } -} -- cgit v1.2.3